Holes for riveting purposes should be preferably made by

A. Cutting torch

B. Drilling

C. Punching

D. None of these

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the…
  2. __________ is the hardest material out of the following.
  3. In the acid Bessemer process, the hot metal should have the following composition.
  4. Secondary hardening in steels arises out of the
  5. Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2. Then the outcoming steam…
  6. Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional…
  7. The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________…
  8. Which of the following relationships is correct for relating the three elastic constants of an isotropic…
  9. Materials having resistivity ranging from 1 to 100 ohm. cm is termed as
  10. Limestone is added in the blast furnace (during pig iron manufacture) to
  11. Superheating of steam is done at constant
  12. The noble metals
  13. As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint…
  14. Shampoos are commercially not available in the form of
  15. Fire in fuel gas pipelines is extinguished most effectively by
  16. Which of the following represents the correct time-temperature curve when a block of metal is heated…
  17. During sensible heating of humid air
  18. __________ number determines whether the fluid flow in an open channel is supercritical, critical or…
  19. Air standard Otto cycle is more efficient than the diesel cycle for the same
  20. For grinding of softer materials, the grinding wheel should have __________ grain size.
  21. Pearlite comprises of
  22. Magnetic permeability of iron is increased by its
  23. __________ wire is never used for making the heating element.
  24. Heat transfer by __________ is almost absent in case of fluidised bed drying operation.
  25. Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is…
  26. Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle.
  27. For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other…
  28. Enzymes belong to the category of
  29. Hardening of steel is not possible, unless it is heated __________ critical point.
  30. The swift cup test evaluates the following property of a sheet metal.